Spinnaker Dumas GMTvsYema Superman Worldtime GMT
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Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.
Dumas GMT
Superman Worldtime GMT
Diameter
44mm
39mm
Lug-to-Lug
48mm
n/a
Thickness
15mm
n/a
Water Resistance
300m
300m
MSRP
$399
lowest
$1,549
Movement
Seiko NH34
Automatic
Case
5 specsCrystal & Dial
1 specsMovement
1 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Spinnaker Dumas GMT is praised for its good finishing and satisfying lume, including on the crown. Owners note its 44mm case and 15mm thickness, with one finding it wears well on a 17cm wrist, while a reviewer suggests its substantial size and 209g weight make it unsuitable for smaller wrists. Overall, owners and reviewers find the Spinnaker Dumas GMT offers good value, particularly with the inclusion of an extra rubber strap.
The Spinnaker Dumas GMT offers robust build quality for its price point. Reviewers noted the 300-meter water resistance.
The Yema Superman Worldtime GMT is praised for its comfortable 39mm wearability and a unique bezel-lock mechanism, with owners appreciating its premium feel and domed crystal. However, some find the aluminum bezel insert less desirable than ceramic and report a stiff bracelet clasp, with one owner noting inconsistent quality control and poor customer service. Overall, owners rate the Yema Superman Worldtime GMT highly for its comfortable 39mm wearability and unique bezel-lock mechanism, despite occasional issues with the bracelet clasp and quality control.
The "Coke" bezel and maxi dial are attractive design elements. The in-house automatic GMT movement is a French alternative to pricier GMTs.
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